Answer:
We walked through the Red Oak Nature Center today; it was surprising how many bicyclists were there.
Explanation:
Out of the four sentences provided, the correct punctuated sentence is the third option.
We walked through the Red Oak Nature Center today; it was surprising how many bicyclists were there.
In the<u> first sentence</u>, <em>We never found the answer to our question, in fact, we’re still looking to this day</em>, there should be a full-stop just after 'question'.
In the <u>second sentence,</u> <em>The play was an actual wedding party</em><em>, the actors were funny, outgoing, and playful party guests who interacted with the audience, </em>the use of comma right after 'wedding party' should be replaced by a full stop. It will make it a much better sentence framing, shortening the sentence and also the first sentence can stand as a full sentence on it's own.
The the <u>fourth sentence</u>,<em> It was an extremely hot day, 99 degrees with a heat index of over 100 degrees,</em> the use of the comma in between day and 99 is wrong.